Main research areas of the Faculty
CHEMICAL STABILIZATION OF METALS/
METALLOIDS IN CONTAMINATED SOILS
Team introduction:
Chemical stabilization is a soil remediation method based
on the application of various inorganic and organic amendments to contaminated soils. These stabilizing agents lower
the mobility and bioavailability of risk elements in such soils.
Immobilization is achieved through several physico-chemical
processes, such as adsorption, complexation, precipitation
and co-precipitation. Our research team studies sorption mechanisms on various amendments, mostly iron and manganese (nano-)oxides and biochar. The efficiency of the stabilizing agents is evaluated using batch, column and lysimeter
experiments in the laboratory and field and modeled using
geochemical and hydropedological transport models.
Team members:
Dr. Michael Komárek (team leader, environmental geochemistry; contact: [email protected])
Dr. Lukáš Trakal (hydropedology; contact:
[email protected])
Dr. Martina Vítková (environmental mineralogy; contact:
[email protected])
Contacts
Address:
Faculty of Environmental Sciences, Czech University of Life Sciences Prague
Kamýcká 129
165 21 Prague 6 – Suchdol
Tel. +420 224 382 147
e-mail: [email protected]
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Main research areas of the Faculty of Environmental Sciences
5 most significant recent publications by team
members:
Komárek M., Koretsky C.M., Stephen K.J., Alessi D.S.,
Chrastný V. 2015. Competitive adsorption of Cd(II), Cr(VI)
an Pb(II) onto nano-maghemite: A spectroscopic an modeling approach. Environmental Science & Technology.
Vítková M., Komárek M., Tejnecký V., Šillerová H., 2015.
Interactions of nano-oxides with low-molecular-weight
organic acids in a contaminated soil. Journal of Hazardous Materials 293, 7-14.
Trakal L., Bingöl D., Pohořelý M., Hruška M., Komárek M.,
2014. Geochemical and spectroscopic investigations of
Cd and Pb sorption mechanisms on contrasting biochars:
Engineering implications. Bioresource Technology 171,
442-451.
Komárek M., Vaněk A., Ettler V., 2013. Chemical stabilization of metals and arsenic in contaminated soils using
oxides - A review. Environmental Pollution 172, 9-22.
Trakal L., Kodešová R., Komárek M., 2013. Modelling of
Cd, Cu, Pb and Zn transport in metal contaminated soil
and their uptake by willow (Salix x smithiana) using HYDRUS- 2D program. Plant and Soil 366, 433-451.
Applied outcomes of the research and further
potential applications of the research:
Metal contamination of soils is a serious environmental problem. The development of innovative non-destructive soil remediation methods
is currently under intensive research and chemical stabilization represents a gentle approach.
Nano-oxides are becoming an interesting stabilizing amendment particularly owing to their
high specific surface and reactivity. The development of geochemical and transport models describing contaminant behavior and migration on
remediated sites is also crucial for the evaluation
of remediation procedure efficiency.
Keywords: soil contamination; chemical
stabilization; nano-oxides; biochar; metals;
metalloids
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